Description
- Emerson 1X00797H01L | Original Ovation DeltaV Power Unit
2. Unboxing & Physical Snapshot
- Model & Brand: Emerson 1X00797H01L Power Module Unit for Emerson Ovation and DeltaV industrial control environments. This module provides regulated 24–28 VDC power output for automation system components.
- Product Type: Industrial DC Power Supply / Power Module.
- Physical Dimensions (Approximate W × H × D): 133 × 133 × 44 mm (5.25 × 5.25 × 1.75 in.).
- Estimated Shipping Weight: Approximately 1.6–2.0 kg (3.5–4.4 lb) including protective packaging.
- What’s in the Box:
- Emerson 1X00797H01L power module
- DIN rail mounting interface
- Status LED indicators
- Protective packaging
- Anti-static bag where applicable
- Product identification label
- Documentation when supplied
3. Product Introduction
The Emerson 1X00797H01L is installed as a cabinet power source within Ovation and DeltaV control architectures. The DIN rail mounting body, ventilation openings, terminal connections, and retaining mechanism must be inspected before installation. Correct spacing around the enclosure is necessary because heat generated during AC/DC conversion must escape through natural airflow paths (which is critical for long-running control cabinets).
This power module converts incoming supply power into regulated 24–28 VDC output at up to 20 A for connected automation equipment. It includes protection functions such as overload and short-circuit protection according to available product specifications. Check the terminal block condition before energization. Loose connections at a high-current supply point can create localized heating and unexpected cabinet faults.
4. Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Emerson |
| Model Number | 1X00797H01L |
| Product Type | DC Power Supply Module |
| System Compatibility | Emerson Ovation / DeltaV control systems |
| Input Voltage Range | 100–240 VAC ±15% or system-specific DC input configuration |
| Output Voltage | 24–28 VDC adjustable |
| Output Current | 20 A continuous |
| Output Power | 480 W continuous |
| Peak Output Capability | Approximately 720 W for short duration |
| Mounting Method | DIN rail mounting |
| Cooling Method | Passive air cooling |
| Power Factor Correction | Active PFC |
| Protection Features | Overvoltage, overload, short-circuit, thermal protection |
| Status Indicators | LED power/fault indicators |
| Power Dissipation | Approximately 31–40 W depending on operating condition |
| Operating Temperature | Approximately 0°C to +55°C |
| Storage Temperature | Approximately -40°C to +85°C |
| Relative Humidity | 5–95% RH, non-condensing |
| Dimensions | 133 × 133 × 44 mm |
| Weight | Approx. 1.6 kg |

Emerson 1X00797H01L
5. Global Compliance & Industry Certifications
Expected compliance considerations for the Emerson 1X00797H01L include:
- CE Mark — applicable for compliant industrial installations.
- UL/cUL Listed — applicable depending on the approved equipment configuration.
- RoHS compliance — dependent on manufacturing revision and documentation.
- DNV GL Marine Approval — referenced for suitable marine automation applications.
- ATEX/IECEx — only applicable when installed within a certified hazardous-area system.
UL certification matters because power modules directly supply control equipment. Verified insulation, thermal performance, and protective functions reduce the risk of electrical faults inside automation cabinets.
Verify specific lot certifications with OEM.
6. Long-Term Storage & Asset Preservation Guide
Keep the 1X00797H01L inside its original packaging until installation. Protect the terminal interfaces from dust and oxidation, especially when spare inventory remains stored for several years.
Maintain warehouse humidity below 60% RH. Condensation cycles can affect terminal surfaces, internal electrolytic capacitors, and insulation materials.
Inspect before energizing. Check the DIN rail clip, terminal screws, ventilation openings, enclosure condition, and date code. Long-stored power supplies should be energized gradually where plant procedures require capacitor reforming (which is especially important for aging electronic power assemblies).
Record serial number, manufacturing date, inspection status, and installation history in the asset management database.
7. Physical Installation Prerequisites
- Install on a compatible DIN rail system inside the control cabinet.
- Confirm AC input and DC output wiring ratings before connection.
- Provide adequate ventilation around the power module.
- Leave at least 50 mm clearance above and below the module for convection cooling.
- Avoid blocking ventilation openings.
- Use proper protective earth grounding.
- Tighten power terminals to the specified torque.
- Separate high-current power wiring from sensitive signal cables.
- Verify output voltage before connecting downstream control equipment.
8. Buyer’s FAQ (Logistics & Compliance Focus)
Q: What HS Tariff Code is commonly used for the Emerson 1X00797H01L?
A: Industrial power modules are commonly classified under HS 8504 categories for electrical transformers, converters, and power supply equipment, although some suppliers classify control-system spare modules under related automation equipment headings. Confirm the final HS code with the importing customs authority.
Q: Does Country of Origin (COO) affect importing this Emerson power module?
A: Yes. COO affects customs clearance, duty calculations, warranty tracking, and industrial asset records. Ensure the COO on the invoice, packing list, and product label documentation remains consistent.
Q: Is shipping insurance recommended for the 1X00797H01L?
A: Recommended. Power modules contain switching components, capacitors, and precision protection circuits. Transportation shock or moisture exposure can create failures that may only appear after installation.
Q: Does the Emerson 1X00797H01L include the latest firmware pre-loaded?
A: No firmware is normally loaded into this power module. It is a power conversion device rather than a programmable controller. Verify hardware compatibility, output requirements, and system power calculations before installation.



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